Jack and floor-clamp.



H. N. SIBLEY.

JACK AND FLOOR CLAMP.

APPLICATION FILED MAR. 7. 1913.

1,169,685.. Patented Jan. 25, 1916.

Witnesses piarrnn erarne rarniar orirren HORACE NEWTON SIIBLEY, OF SHREVEPORT, LOUISIANA, ASSIGNOB OF ONE-HALF TO THOMAS E. COLLINS, 0F SHREVEPOBJT, LOUISIANA.

JACK AND FLOOR-CLAMP.

Specification of Letters Patent.

Patented! Jan. 25, 1916.

Application fi led March 7, 1913. Serial No. 752,729.

To all whom it may concern: 1

Be it knownthat I, HORACE N. SIBLEY, a citizen of the United States, residing at Shreveport, in the parish of Caddo and 5 State of Louisiana, have inventedanew'and useful Jack and Floor-Clamp, of which the following is a specification.

The present invention appertains to a jack and floor clamp and aims to provide a novel and improved implement of the character indicated, which may be employed for divers purposes, such as clamping flooring boards in position upon the joists, for jacking up automobiles, and other vehicles, and the like.

The present invention also has for its object to provide a device of the character indicated embodying a stock which may be applied to a joist or which may be set up- 0 rightwhen used as a jack, in combination with a pressure bar slidably carried by the stock and novel means for actuating and locking the pressure bar.

As a further object, the present invention contemplates the provision of an implement of the nature indicated which shall be comparatively simple, substantial, durable, light, compact and inexpensive in construction, which shall be serviceable, efficient and 30 convenient in its use, and which shall be easy, effective and quick in its operation.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in thewcombination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made 4 within the scope of what is claimed without departing from the spirit of the invention.

The preferred embodiment of the. invention has been illustrated in the accompany- ,ing drawing, wherein Figure 1 is a side elevation of the device. Fig. 2 is a top view thereof, a portion thereof being broken away. Fig. 8 is a sectional view taken on the line 3-3 of Fig. 2.,

In carrying out the invention, reference being had to the drawing, there is provided a stock or body 1, which is provided with a rabbet 5 in order that the stock may be angular or Leshaped in cross section, soas to provide the respective Wide and narrow .long angular extension 10 at its free end.

The extension 10 1s wedge shaped 1n cross section and has its inner or sharpened edge serrated as at 11 and projecting toward .the pivot of the arm 9, the extension 10 being adapted to depend over the opposite side of the joist or stud so that the teeth 11 may engage said side. Thus, the teeth 8 and 11 are adapted to grip the opposite sides of the joist or stud so as to prevent the stock from slipping or sliding rearwardly or backwardly, the arm 9 being adapted to swing so as to permit the flange 6 and extension 10 to clamp the joist or stud therebetween. The arm 9 is also adapted to accommodate various thickness of joists or studs, as will be apparent. The length of the extension 10 and the width of the flange 6 are the same. j i y In the outer face of the flange 6, there is provided a longitudinal channel or slide way 12 which slidably receives a pressure bar 13.- This bar 13 is provided at its ,forwardly projecting end with an off set shoe 14, so that the saidbar 13 may be disposed at the side of a joist, while the shoe 14 is disposed slightly above the plane of the top of the joist, or in the plane of the flooring. The pressure bar 13 is provided with a pair of lugs or shoulders 15 to accommodate the eccentric hereinafter referred to.

An actuating lever 16 is fulcrumed to the flange 6 adjoining its edge by means of a lever 16 adjoining the eccentric 18. A coiled wire compression spring Qiis seated between the outer end of the lever 19 and the lever 16, the levers being preferably provided witlr'sockets in which the endsof the spring are seated so that the'dog 21 is given a 7 21 is adapted to engage the ratchet teeth 23,

the ratchet 23' facing forwardly while the pawlor dog faces'rearwardly. Thus, when the lever 16 is swung forwardly, the pawl or dog 21 will snap into engagement with the ratchet teeth and lock the lever against retrograde or rearward movement, but by pressing the free end or arm of the lever 19 against or toward the lever16, the pawl or dogmay be released so as to permit the lever 16 to be swung rearwardly.

- In the use of the present device as a floor clamp the stock may be readily engaged to I the joist as above indicated, sothat the shoe .14 maybe brought into engagement with the flooring board andthen by swinging the lever 16 forwardly, the oist' will be clamped between the flange 6 and the extension 10 and the pressure bar 13 will be forced forwardly so as to clamp the flooring board in positionso that it may be readily nailed or secured in position on the joist. The device may be conveniently vmoved along the joist so as to clamp the respective flooring boards in position. as will be apparent to those versed in the-art. Particular attention is directed to the fact that the respective flanges 6 and 7.overlap the side and top of the joist, while the extension 10 engages the opposite side of the joist, the pressure bar 13. slidably engaging flange ,6 so as to work along the respective side of the joist and the shoe 14 being off set to the plane of the flooring, while the actuating lever 16 is pivoted to the flange 6 and o'peratively engages the pressure bar 13. so that the actuating lever projects upwardly to be conveniently manipulated by the operator. It is also to be noted that as the lever 16 is moved forwardly or toward the operator. the pawl 21 will snap into engagement with the respec. tive ratchet teeth 23 so as to lock theparts inposition, the parts being readily released by swinging the lockinglever 19 agalnst the tension of its spring. V

In manipulating the lever 16, the hand may. be readily gripped about the free end of the lever, so that the outer end or armof the locking lever 19 may be readily pressed against the lever 16, whenever it is desired to release the lever 16. In swinging the lever 16 forwardly from its rearmost position, the eccentric 18 will work within the lugs or shoulders 15 of the pressure bar 13, so that the pressure bar 13 will be moved relatively fast at first and then gradually slower as it moves toward to the forward end of its stroke. Thus, the pressure bar 13 may be rapidly moved forwardly against the object to be moved by means of the eccentric, and then by swinging the eccentric farther an increased pressure will be trans mitted to the pressure bar 13 due to the peculiar movement of the eccentric 18 between the lugs 15 or against the forward lug 15. Conversely, as the lever 16 is moved rearwardly, it will be noted that the pressure bar'l3 will be slid backwardly with an accelated velocity.

The present device may also be employed for jacking up automobiles, and other vehicles or the like, in which event, the stock 4 is set on end with the shoe 14 uppermost so as to engage the axle or other part. Then, by swinging the lever 16, the automobile, vehicle, or the like, may be raised conveniently. The stock may be braced in erect or vertical position for swinging the arm 9 against the surface on which the stock is placed, so that the extension 10 may be held beneath the foot of the operator, if desired, in order to brace or hold the stock firmly in position, while the automobile, vehicle or the like, is being jacked. The present device may also be employed for other purposes, as will be manifest. It will thus be observed that when the stock is set on end,

tension 10 is swung into engagement with the underlying surface, the arm 9 will serve as a brace and the extension 10 will serve as a footpiece. so thatthe stock may be held in place. The lever 16 is also preferably provided with an angular finger 25 engaging in back of the segment 22, or opposite the ratchet teeth, so as to maintain the lever in operative position relative to the segment, and so as to remove a greater portion of the strain from the bolt 17.

Having thus described the invention, what is claimed is A j ack. and floor clamp embodying a stock of L-shaped cross section, the inner face of the wide flange being toothed, an arm pivoted to the outer face of the narrow flange adjacent one end of the stock, and having an angular extension at its free end coiiperating with the said toothed flange, the length of the extension and width of said wide flange being the same, the extension being wedge shaped in cross section and having its sharp edge serrated and projecting toward the pivot of the said arm, a pressure bar slidably carried by the outer face of the Wide flange and projecting from the other In testimony that I claim the foregoing as end of the stock, and means carried by the my own, I have hereto afiixed my signature outer face of the Wide flange for actuating in the presence of two Witnesses.

the pressure bar, the said arm being adapted HORACE NEWTON SIBLEY. to serve as a brace When the stock is set on Witnesses:

the first mentioned end and thesaid exten- GEORGE THURBER,

sion serving as a foot piece. J OE ARMSTRONG.

Copiea at thia patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C." 

